Sony STR-K675P (For HT-DDW675) User manual

SERVICE MANUAL
Sony Corporation
Audio Group
Published by Sony Engineering Corporation
US Model
FM STEREO FM-AM RECEIVER
9-879-446-01
2005C1678-1
© 2005.03
Ver. 1.0 2005.03
SPECIFICATIONS
STR-K675P
• STR-K675P is the tuner and the amplifier
section in HT-DDW675.
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are trademarks
of Dolby Laboratories.
“DTS”and “DTS Digital Surround”are registered trademarks of
Digital Theater Systems, Inc.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
(Models of area code US only)
With 6 ohm loads, both channels driven, from
120 – 20,000 Hz; rated 70 watts per channel
minimum RMS power, with no more than 0.7%
total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
Power Output
1)
(6 ohms 1 kHz, THD 10%)
FRONT
2)
: 110 W/ch
CENTER
2)
: 110 W
SURR
2)
: 110 W/ch
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna FM wire antenna
Antenna terminals 75 ohms, unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
With 10-kHz tuning scale: 530 - 1,710 kHz
3)
With 9-kHz tuning scale: 531 - 1,710 kHz
3)
Antenna Loop antenna
Intermediate frequency 450 kHz
3) You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off the
receiver. While holding down PRESET TUNING +
or TUNING +, press?/1. All preset stations will be
erased when you change the tuning scale. To reset
the scale to 10 kHz (or 9 kHz), repeat the procedure.
1) Measured under the following conditions:
2) Depending on the sound field settings and the
source, there may be no sound output.
Inputs (Analog)
Inputs (Digital)
Output (Analog)
Reproduction frequency range:
28 – 20,000 Hz
Tone
120 V AC, 60 Hz
SA-CD/CD, DVD
VIDEO 1, 2 Sensitivity: 800 mV Impedance: 50 k ohms
DVD (Coaxial) Sensitivity: –
Impedance: 75 ohms
SA-CD/CD (Optical) Sensitivity: –
Impedance: –
SUB WOOFER Voltage: 2 V
Impedance: 1 k ohm
Gain levels ±6 dB, 1 dB step
General
Power requirements 120 V AC, 60 Hz
Power consumption
Power consumption (during standby mode)
0.2 W
Dimensions (w/h/d) (Approx.)
430 ×145 × 301.5 mm
(17 ×5 6/8 ×117/8 inches)
including projecting parts
and controls
Mass (Approx.) 6.5 kg (14 lb 6 oz)
170 W
Design and specifications are subject to change
without notice

2
STR-K675P
TABLE OF CONTENTS
1. GENERAL ................................................................... 3
2. TEST MODE ............................................................... 7
3. DIAGRAMS
3-1. Block Diagram — MAIN Section —.............................. 10
3-2. Block Diagram — DISPLAY/POWER Section — ........ 11
3-3. Printed Wiring Board
— DIGITAL Board (Side A) — ...................................... 12
3-4. Printed Wiring Board
— DIGITAL Board (Side B) — ...................................... 13
3-5. Schematic Diagram — DIGITAL Board (1/4) — .......... 14
3-6. Schematic Diagram — DIGITAL Board (2/4) — .......... 15
3-7. Schematic Diagram — DIGITAL Board (3/4) — .......... 16
3-8. Schematic Diagram — DIGITAL Board (4/4) — .......... 17
3-9. Printed Wiring Board — MAIN Section — ................... 18
3-10. Schematic Diagram — MAIN Section (1/3) — ............. 19
3-11. Schematic Diagram — MAIN Section (2/3) — ............. 20
3-12. Schematic Diagram — MAIN Section (3/3) — ............. 21
3-13. Printed Wiring Board — STANDBY Section — ........... 22
3-14. Printed Wiring Board — DISPLAY Section — ............. 23
3-15. Schematic Diagram — DISPLAY Section — ................ 24
3-16. Printed Wiring Board — VIDEO Board —.................... 25
3-17. Schematic Diagram — VIDEO Board — ...................... 26
4. EXPLODEDVIEWS
4-1. Front Panel Section ......................................................... 34
4-2. Chassis Section................................................................ 35
5. ELECTRICAL PARTS LIST .................................. 36
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metaltrim, “metallized” knobs,screws,
and all other exposed metal parts forAC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. Acommercial leakage tester,such asthe Simpson229 orRCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operatedAC milliammeter.The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM orbattery-operatedACvoltmeter.The“limit” indication
is 0.75V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2VAC range are suitable. (See
Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µ FAC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be
damaged by heat.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

3
STR-K675P
SECTION 1
GENERAL This section is extracted
from instruction manual.
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STR-K675P
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SYSTEM STANDBY
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5
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STR-K675P
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7
STR-K675P
SECTION 2
TEST MODE
FACTORY PRESET MODE
•All preset contents are reset to the default setting.
•Procedure:
While depressing the PRESET TUNING– and the
DIMMER buttons simultaneously, press the power ?/1
button to turn on the main power. The message “FACTORY”
appears and the present contents are reset to the default values.
AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE
•Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
•Procedure:
Set the FUNCTION to AM. Turn off the main power.
While depressing the TUNING+ button or the PRESET
TUNING+ button, press the power ?/1 button to turn on
the main power. Either the message “9 k STEP” or “10 k
STEP” appears. Select the desired step.
This mode is only for US, Canadian, Australian and E models.
FLUORESCENT INDICATORTUBETEST MODE
•Allfluorescent segmentsare tested. When thistest isactivated,
all segments turn on at the same time, then each segment turns
on one after another.
•Procedure:
While depressing the PRESET TUNING– and the AM
buttons simultaneously, press the power ?/1 button to turn
on the main power.
1. All segments turn on.
2. Press the VIDEO 1 button, confirm display.
3. Press the VIDEO 1 button, confirm display
4. Press the VIDEO 1 button, All segments turn off.
5. Every pressing of the VIDEO 1 button turns on each
segment one after another in the same order.
(Not only the VIDEO 1 button, but also the other buttons
such as VIDEO 2 , DVD , SA-CD/CD , FM and AM can
be used.)
SOUND FIELD CLEAR MODE
•The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon
completion of repair.
•Procedure:
While depressing the 2CH button, press the power ?/1
button to turn on the main power.
The message “SF. CLR.” appears and initialization is
performed.
SOFTWARE VERSION DISPLAY MODE
•The software version is displayed.
•Procedure:
While depressing the PRESETTUNING– and the I buttons
simultaneously, press the power ?/1 button to turn on the
main power. The model name, destination and the software
version are displayed.
KEY CHECK MODE
•Button check
•Procedure:
While depressing the A.F.D. and the I buttons simulta-
neously, press the power ?/1 button to turn on the main
power.
“REST 25” appears.
Every pressing of any button other than ?/1 counts down
the buttons. The buttons which are already counted once are
not counted again. When all buttons are pressed “REST 00”
appears.
AUTO BETICAL MODE
•This mode is installed in the Europe models only. When this
mode is used, the receiver scans the broadcasts that can be
received by the tuner, and sets up the broadcasts. Be sure to
start scanning after connecting the antenna.
•Procedure:
1. Check that the antenna is connected.
2. Press the ?/1 button to turn on the power while pressing the
MEMORY button.
CHANGE COMMON MODE
•This mode is command mode changed to AV 1 or AV2.
•Procedure:
While depressing the ENTER button, press the power ?/1
button to turn on the main power.
Either the message “C.MODE.AV 1” or “C.MODE.AV 2”
appears.
SHIPMENT MODE
•All preset contents are reset to the default setting.
•Procedure:
While depressing the A.F.D. and the AM buttons simulta-
neously, press the power ?/1 button to turn on the main
power.
“CLEARED” appears and switch off the set.
L
SW
CR
SL S SR
SBL SB SBR
LFE SP A
SP B SLEEP OPT COAX MULTI CH IN 96/24
DIGITALEX PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D
D D D
dB
kHz
mft.
MHz
MEMORY
DIRECT
L
SW
R
S
SB
LFE SP A
SP B SLEEP OPT COAX MULTI CH IN 96/24
DIGITALEX PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D
D D D
dB
kHz
mft.
MHz
MEMORY
DIRECT
C
SL SR
SBL SBR
SP A
SP B SLEEP OPT COAX MULTI CH IN 96/24
DIGITALEX PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
D.RANGE EQ STEREO MONO
D
D D D
kHz
mft.
MHz
MEMORY
DIRECT

8
STR-K675P SECTION 3
DIAGRAMS
• Circuit Boards Location
DIGITAL board
MAIN board
DISPLAY board
HEADPHONE board
POWER board
TUNING board
STANDBY board
VIDEO board

99
STR-K675P
STR-K675P
•Waveforms
– DIGITAL Board –
For Schematic Diagrams.
Note:
•All capacitors are in µF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
• f: internal component.
•2: nonflammable resistor.
•5: fusible resistor.
•C: panel designation.
•A: B+ Line.
•B: B+ Line.
•Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
No mark : FM
•Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
•Waveforms are taken with a oscilloscope.
•Circled numbers refer to waveforms.
•Signal path.
F: FM
J: ANALOG
c: DIGITAL
I: VIDEO
For Printed Wiring Boards.
Note:
•X: parts extracted from the component side.
• a: Through hole.
• f: internal component.
•: Pattern from the side which enables seeing.
THIS NOTE IS COMMON FOR PRINTEDWIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
C
BThese are omitted. E
Q
B
These are omitted.
CE
Caution:
Pattern face side: Parts onthe pattern facesideseen from
(Side A) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side B) the parts face are indicated.
1 IC1501 9 (MCLK1)
1 V/DIV, 40 ns/DIV
72 ns 3.4 Vp-p
2 IC1101 id (X1)
1 V/DIV, 20 ns/DIV
41.6
µ s4.2 Vp-p
3 IC1301 ws (XIN)
1 V/DIV, 40 ns/DIV
81 ns 4.4 Vp-p
•Indication of transistor.
Note: The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.

1010
STR-K675P
STR-K675P
3-1. BLOCK DIAGRAM — MAIN SECTION —
• Signal Path
: FM
: ANALOG
: DIGITAL
• R-CH is omitted due to same as L-CH.
: VIDEO
AUDIO IN
AUDIO IN
PROCESSOR
INL4
4
49
LOUT
INL5
2
40
SLOUT
33
COUT
DATA
24
CLK
25
27
VOL CLK
SDA SCL
28
VOL DATA LATCH
SYSTEM CONTROL
IC1101(2/3)
DVD
IN
J1301
35
62
IC1303
DIGITAL AUDIO
I/F RECEIVER
IC1301
L
DISPLAY
/POWER
SECTION
DIN2
5
DO
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
13
CK OUT
20
XMCK
14
BCK
15
LRCK
16
DATAO
IC1303
X1301
12.288MHz
AUDIO DSP
IC1503
SELECTOR
IC1501
KFSI0
SYSCLK
LRCK
BCK
DOUT
22
16
13
14
15
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
BST
56
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
BCKII
17
LRCKII
15
IC1502
SRAM
AUDIO CODEC
IC1452
AD CONVERTER
IC1401
MCLKI
38
RST
37
ML
36
MC
35
MDI
34
MDO
33
10
VOUT5
BCK
40
LRCK
41
DATA3
47
DATA1
45
26
SDO4 DATA4
31
DATA2
46
14
VOUT1
12
VOUT3
11
VOUT4
ANALOG SOUND
SL
ADIFL
13
LIN
16
19
20
21
SL
C
32
SW OUT
SLIN
CIN
SWIN
A
98 97 95 96 99 100 94 1
DO
DI
CLK
CE
ERROR
XSTATE CKSEL1
DATA0
92
BST SEL
20
HCLK
4
HCS
5
HACN
7
PM
3
BST
6
XRST
10
RST(680)
9
RST(800)
12
MC
13
MC
14
MDI
15
MDO
5 6
29 30
RELAY
DRIVE
Q560
J401
VIDEO 1
VIDEO 2
AUDIO INSA-CD/CD
AUDIO INDVD
SA-CD/
CD IN OPTICAL
IN
IC1352
DIN0
3
22 21
XIN XOUT
93
XMODE
CKSEL1
47
GP9
68
HD OUT
35
HD IN
33
2
GP9
18
HD OUT
19
HD IN
9
MCLK1
12
MCLK2
X1502
13.9MHz
14
SCK OUT
1
LIN
6
RST
20
BCKO
19LRCKO
18SDI1
24
6
1 5
2
AUDIO GP8
69
EXLOCK
59
INL1
10
TN1
TUNER PACK
FM
75 Ω
COAXIAL
AM
R-CH
ST-DI
ST-DO
CLK
CE
STEREO
TUNED
MUTING
FM
AM
R CH
L CH
TUNER +10V10V SYSTEM CONTROL.
IC1101(1/3)
DO
73
SLATCH
74
TUNER-DATA
17
T.SERIAL CLK
16
STEREO
76
TUNED
75
MUTE
78
COAXIAL
OPTICAL
DIGITAL
D1301
IC400
SDA SCL
EEPROM
IC1131
C/SB RY
68
INL2
8
INL3
6
J402
RY702
AUDIO OUT
J403
SUB WOOFER
SB
AY
IC203
VIDEO AMP
IC807
+5V REG
12
SW4
V3
13
86
S1 SW1
88
SW3
11
M
2
87
S2 SW2
VIDEO IN
J201
(1/2)
J200
VIDEO 1
VIDEO INVIDEO 2
VIDEO INDVD
3V2
V1
1
10
MON MONITOR
+ V
J201
(2/2)
VIDEO OUT
8
+5V
IC804
-5V REG - V
14
-5V

1111
STR-K675P
STR-K675P
3-2. BLOCK DIAGRAM — DISPLAY/POWER SECTION —
• R-CH is omitted due to same as L-CH
IN2
8
12
+V OUT2
POWER AMP
IC501
POWER AMP
IC601
9
NF2
LIMITER
Q501,502
11
-V OUT2
IN2
12
+V OUT2
9
NF2
11
-V OUT2
BOOSTER
Q503
BOOSTER
Q504 CURRENT
DETECT
Q505,506
AF POWER
PROTECT
Q507
LIMITER
Q601,602
BOOSTER
Q603
BOOSTER
Q604 CURRENT
DETECT
Q605,606
IN2
8
12
+V OUT2
POWER AMP
IC701
9
NF2
LIMITER
Q701,702
11-V OUT2
BOOSTER
Q703
BOOSTER
Q704 CURRENT
DETECT
Q705,706
D883
PROTECT
SWITCH
Q881-883
RELAY
DRIVE
Q509
RY502
RELAY
DRIVE
Q508 RY501
D731
RELAY
DRIVE
Q608
RY601
D733
RELAY
DRIVE
Q708
RY701
D734
L
R
SR
SL
C
R-CH
R-CH
R-CH
PHONES
TM602
TM600
61
PROTECTOR
62
HP RY
66
FRONT RY
69
REAR RELAY
68
C/SB RY
RV102
ENCODER
3 1
VOL_ENC(B)
46
VOL_ENC(A)
45
POWER KEY
56
?/1
S152
77
RSTX
48
STOP
54
SIRCS
63
FUSE DETECT
REMOTE
CONTROL
RECEIVER
1
IC102
D910-913
AC
IN
T902
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D920-923
23
VCC5
84
VCC3
-7V
REG
3 2
+7V
REG
1 3
AUDIO
+7V
IC821
IC822
POWER RY
58
RELAY
+B
D804-807
82 83
X0
X1
X1101
24MHz
F1
F2
L
SLSL
C
A
J700
FLUORESCENT
INDICATOR TUBE
FL101
59
FL DATA
60
FL CLK
57
FL_LAT
7
DIN
8
CLK
9
STB
14 29
SEG1-16
42 31
GRID1-12
F1 F2
FL DRIVE
IC100
FUNCTION
KEY
A/D0
38
S100-108S131-139
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S110-116
SYSTEM CONTROL
IC1101(3/3)
• Signal Path
: FM
AF POWER
PROTECT
Q607
AF POWER
PROTECT
Q707
IC850
21
FRONT
SURROUND
CENTER
IC850
57
55
HP DETECT
BUFFER
IC101
35
AVCC
+3.3V
REG
3 1
IC1904
AUDIO
-7V
+10V
REG
3 1
TUNER
+10V
IC1902
T901
+3.3V REG
Q471
Q911
AC DET
1 2
IC1111
+3.3V
D811
+B
-B
-B
SWITCH
Q851,852
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3 1
IC1031
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3 1
IC1001
AUDIO
+5V
SPEAKERS
MASTER
VOLUME
8
RESET
+3.3V(STBY)
MAIN
SECTION

1212
STR-K675P
STR-K675P
3-3. PRINTEDWIRING BOARD — DIGITAL BOARD (SIDE A) — • :Uses unleaded solder. •See page 8 for Circuit Boards Location.
• Semiconductor
Location
Ref. No. Location
D1001 C-8
D1103 G-7
D1105 G-8
D1106 G-7
D1301 D-3
D1302 D-2
IC1101 F-8
IC1111 D-9
IC1131 G-7
IC1301 C-3
IC1303 D-2
IC1401 F-2
IC1452 F-4
IC1501 E-5
IC1502 C-5
IC1503 F-6
Q1103 G-8
Q1104 G-8
Q1105 G-8
IC1101
IC1111
IC1131
IC1501
IC1502
IC1503
IC1301
IC1452
IC1401
IC1303

1313
STR-K675P
STR-K675P
3-4. PRINTED WIRING BOARD — DIGITAL BOARD (SIDE B) —
• Semiconductor
Location
Ref. No. Location
D1003 E-9
D1004 E-8
D1107 D-3
D1108 D-3
D1110 D-3
D1111 D-3
IC1001 F-8
IC1031 B-3
IC1071 B-5
IC1352 B-9
IC1901 B-2
IC1902 B-4
IC1904 C-2
• :Uses unleaded solder. •See page 8 for Circuit Boards Location.
IC1901
IC1031 IC1902 IC1352
IC1001
IC1904
17
1
16
2
15
IC1031
B
MAIN BOARD
CN503
(Page 18)
A
MAIN BOARD
CN503
(Page 18)
E
DISPLAY BOARD
CNS100
(Page 23)
FOR
FLASH
PROGRAMMING
F
MAIN BOARD
CNP502
(Page 18)
G
MAIN BOARD
CNP501
(Page 18)
TN1
TUNER UNIT
Pin No.1 to Pin No.5 Pin No.6 to Pin No.9
C
STANDBY BOARD
CNP801
(Page 22)
D
MAIN BOARD
CN504
(Page 18)
M
VIDEO BOARD
CNS250
(Page 25)
SA-CD /
CD IN
DVD IN
COAXIAL
OPTICAL
DIGITAL
R1163

1414
STR-K675P
STR-K675P
3-5. SCHEMATIC DIAGRAM — DIGITAL BOARD (1/4) — • See page 9 forWaveform. • See page 27 for IC Block Diagram.
MVIDEO BOARD
CNS250
(Page 26)
16
15
17
16
16
X1301
R1356
R1358R1357
R1306
R1307
R1309
R1303
R1301
R1355
C1310
C1304
C1302
C1360
R1315
R1313
R1312
R1359
R1362
R1304
R1310
R1316
R1314
C1357
R1302
C1356
C1306
C1252 C1253 C1251
C1314
C1361
C1303 C1305C1362
C1308
C1355
IC1352 R1352
R1305
CNS509
IC1303
D1302
FB1306
IC1301
FB1305
TP1003
TN1
D1301 TP1004
C1004
D1004
D1003
CNS508
11P
R1318
C1315
C1313
C1312
C1301
R1311
R1360
JR1020
R1308
JR1511
C1309
C1359
C1358
C1352
R1261
R1260
R1252 R1251
JR1301
FB1302
J1301
12.288MHz
1k
560k22k
100
100
100
33k
5.6k
75
18p
0.01
0.01
47p
100
100
100
100
100
100
1M
100
10k
1p
4.7k
0.01
47
16V
0.1 0.1 0.1
0.1
0.1
0.1 0.10.1
0.1
22
25V
470
TC7WU04F(TE12R)
1SS355TE-17
0
LC89056W-E
0
TUNER UNIT
1SS355TE-17
0.022
1SS367-T3SONY
1SS367-T3SONY
10k
0.1
100p
0.1
0.1
100
100
0
100
0UH
18p
1000 6.3V
0.1
1k
1k
39k 39k
0
100
TORX141L
5P
1P
0.1
0

1515
STR-K675P
STR-K675P
3-6. SCHEMATIC DIAGRAM — DIGITAL BOARD (2/4) —
14
16
17
24
2121
20
20
C1031
C1021
R1179
R1180
R1187
R1088
C1906
C1908
C1905
D1107
D1108
D1110
R1201
D1111
C1913
C1914
IC1904
CNP504
FB1308
D1001
C1022
IC1031
C1032
IC1901
IC1902
CNP503
JR1201
CNS505
JR1202
CNP505
0.1
0.1
10k
10k
10k
10k
470 10V
470 10V
0.1
1SS355TE-17
1SS355TE-17
1SS355TE-17
22k
1SS355TE-17
0.1
25V
47
16V
BA33BC0T
5P
1SR154-400TE-25
470
10V
BA50BC0T
470
10V
SI-3004KWF
TA7809LS
6P
0
9P
0UH
17P
0

1616
STR-K675P
STR-K675P
3-7. SCHEMATIC DIAGRAM — DIGITAL BOARD (3/4) —
14
19
17
15
14
14
R1502
R1504
R1505
R1506
R1507
R1508
R1509
R1511
TP1005
TP1008
TP1009
TP1010
TP1011
TP1012
TP1015
FB1405
C1516
C1518
R1512
R1515
R1522
R1521
R1520
R1519
R1518
R1517
R1525
R1526
C1460
C1457
FB1452
R1527
R1528
R1555
R1540
R1539
R1538
R1537
R1536
R1535
R1534
R1533
R1532
R1541
R1542
R1543
R1544
R1545
R1546
R1547
R1548
R1549
R1550
R1551
R1552
R1553
R1554
FB1503
R1556
X1502
R1523
TP1018
C1403
C1406
C1407
C1491
R1470
R1471
R1472
R1475
R1460
R1461
R1421
R1420
CNS501
R1474
R1403
R1490
R1491
R1492
R1493
R1494
R1495
FB1502
FB1501
C1506
C1507
C1508
C1514
C1510
C1520
C1515
C1517
C1509
R1407
C1511
C1450
C1454
C1494
C1521 C1522
JR1501
C1404
C1401
C1409
R1401
R1402 IC1401
IC1452
IC1502
IC1501
C1513
R1574
R1573
R1572
R1571
R1570
C1502
C1525
C1505
R1149
R1501
R1513
R1019
R1503
C1503
C1501
R1514
C1519
C1402
R1018
FB1453
C1408
C1405
IC1503
R1510
C1504
100
100
100
100
100
100
100
100
0
0.1
0.1
1k
1M
220
220
220
220
220
220
220
220
10
50V
10 50V
0
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
220
0UH
100
220
10 50V
4.7 50V
4.7
50V
10 50V
15P
10k
10k
0
0
0.1
0.1
0.1
0.1
0.1
0.1
470
10V
470
10V
0.1
100
0.1
0.1
0.1
0.1
27p 27p
0
0.1
0.1
0.1
1k
2.2k PCM1800E/2K
IS61LV6416-10TLT
0.1
10k
10k
10k
10k
10k
0.1 25V
470 10V
0.1
100
100
10k
220
0.1
0.1
10k
0.1
47 16V
0
470p
470p
TC7WH157FU (TE12R)
100
0.1
13.9MHz
0
0
0
0
0
0
0
0
0
0
0
0
0
0
PCM1602KYG/2K
CXD9720BQ
0
0
• See page 9 forWaveform. • See page 28, 29 for IC Block Diagrams.

1717
STR-K675P
STR-K675P
3-8. SCHEMATIC DIAGRAM — DIGITAL BOARD (4/4) — • See page 9 forWaveform. • See page 27 for IC Block Diagram. • See page 31 for IC Pin Function Description.
14
16
19
15
C1001 C1002
IC1001
R1136
R1135
R1134
Q1104
Q1103
R1178
R1177
R1176
R1095
R1147
R1119
R1118
R1117
R1115
R1113
R1111
R1110
R1109
R1108
R1107
R1106
R1105
R1140
R1142
R1143
R1144
R1150
R1153
R1154
R1155
R1189
R1190
R1097
R1096
Q1105
R1083
R1186
C1130
C1129
R1152
R1124
R1077
R1078
C1488
C1438
C1428
C1458
C1418
C1448
R1121
R1486
R1446
R1476
R1426
R1416
R1456
R1079
R1053
R1052
R1041
R1044
R1042
R1039
R1035
R1193
0
R1635
R1122
R1123
R1164
R1163
0
C1124
C1123
C1122
R1094
C1487
C1547
C1566
C1569
C1568
C1567
R1114
CNS502
CNS504
R1524
R1075
R1484 R1445 R1435 R1464R1425
R1455
R1138
R1132
X1101
IC1111
C1137
C1139
C1126
D1103
C1108
C1107
FB1101
C1121
R1159
R1160
R1161
R1167
R1168
R1099
R1098
D1105
D1106
R1162
C1411 C1451
C1422 C1462C1432C1472C1441C1483
R1065
R1066
R1067
R1068
R1049
C1138
IC1131
R1071
R1072
R1073
C1120
C1604
C1620
C1605
C1299
R1120
C1140
C1118
IC1101
R1436
R1466
C1478
R1151
C1149
C1495
C1254
C1255
C1142
R1194 0
C1119
R1636
C1103
C1102
R1129
R1076
C1100
R1137
R1128
R1112
R1127
C1468
470
10V
0.1
TA7805S
100
100
100
2SC2712-YG-TE85L
RT1N141C-TP-1
10k
10k
10k
1k
1k
1k
100
100
2.2k
2.2k
2.2k
2.2k
2.2k
100
10k
100
100
100
100
100
100
100
100
10k
10k
100k
10k
2SC2712-YG-TE85L
10k
10k
0.01
0.01
100
100
100
100
10
50V
10 50V
10 50V
10 50V
10
50V
100
1k
1k
1k
1k
100
100
100
10k
2.2k
2.2k
100
100
0.1
0.1
0.1
0.0022
0.0022
0.0022
0.0022
0.0022
0.0022
2.2k
10P
7P
0
10k
10k
S-80929CNMC
-G8ZT2G
0.01
0.1
220p
1SS355TE-17
0.1
0.1
0
0.1
3.3k
100
100
100
100
10k
10k
1SS355TE-17
1SS355TE-17
100
100
100
100
100
10k
0.1
BR24L16F-WE2
0.01
0.1
0.1
0.1
0.1
1k
0.1
0.1
1k
1k
100
220p
220p
220p
220p
0.1
0.1
2.2k
47 16V
0.1
100
100
0.1
100
100
100
100
10
50V
10k
10k
10 50V
1K
1K
10k
10k
10k
2.2k
10k
10k
00 0 00
0
24MHz
00
000000
10k
10k
10k
MB90488
BPF-G-137E1
10 50V

1818
STR-K675P
STR-K675P
3-9. PRINTEDWIRING BOARD — MAIN SECTION —
IC400
IC701
IC501 IC601
IC850
IC821
IC822
LR
FRONTCENTER
LR
SURROUND
SPEAKERS
IMPEDANCE USE 6-16
LRLR
AUDIO IN
VIDEO 1
AUDIO OUT
SUB WOOFERAUDIO IN
VIDEO 2
LRLR
AUDIO IN
DVD
AUDIO IN
SA-CD/CD
G
DIGITAL BOARD
CNS501
(Page 13)
F
DIGITAL BOARD
CNS502
(Page 13)
Pin No. 6 to Pin No.10
B
DIGITAL BOARD
CNP504
(Page 13)
Pin No. 1 to Pin No.5
A
DIGITAL BOARD
CNP503
(Page 13)
J
T901
POWER TRANSFORMER
(Page 22)
HSTANDBY BOARD
CNP906
(Page 22)
D
DIGITAL BOARD
CNP505
(Page 13)
I
T901
POWER
TRANSFORMER
(Page 22)
PHONES
J700
R881
N
VIDEO BOARD
CNP156
(Page 25)
TM602
• :Uses unleaded solder. •See page 8 for Circuit Boards Location.
•Semiconductor Location
Ref. No. Location
D501 D-5
D502 D-4
D503 C-7
D551 D-8
D552 D-7
D601 D-7
D602 D-7
D603 B-6
D651 D-9
D652 D-8
D701 D-2
D702 D-1
D703 B-6
D752 B-6
Ref. No. Location
D791 C-9
D801 C-10
D802 D-9
D804 B-10
D805 B-10
D806 B-10
D807 B-10
D811 C-9
D821 B-4
D851 C-7
D881 C-8
D882 C-8
D883 D-8
Ref. No. Location
IC400 B-2
IC501 C-4
IC601 C-5
IC701 D-2
IC821 B-5
IC822 B-5
IC850 C-6
Q471 C-2
Q501 D-4
Q502 E-5
Q504 E-5
Q503 E-4
Q505 D-6
Ref. No. Location
Q506 D-5
Q507 D-5
Q508 C-7
Q509 C-9
Q551 D-7
Q552 E-7
Q553 E-7
Q554 E-7
Q555 D-8
Q556 D-8
Q557 D-7
Q560 B-5
Q601 D-6
Q602 E-6
Ref. No. Location
Q603 E-6
Q604 E-6
Q605 D-7
Q606 D-6
Q607 D-6
Q608 C-7
Q651 D-8
Q652 E-8
Q653 E-8
Q654 E-9
Q655 D-9
Q656 D-9
Q657 D-8
Q701 D-2
Ref. No. Location
Q702 E-3
Q703 E-2
Q704 E-3
Q705 D-3
Q706 D-2
Q707 E-2
Q708 B-6
Q801 C-8
Q851 C-7
Q852 C-6
Q881 C-8
Q882 C-8
Q883 C-8

1919
STR-K675P
STR-K675P
3-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) —
16
17
21
20
R472
R471
R401
R451
R402
R452
R473
D821
C402
C452
C431
C432
C433
R403
R453
IC400
R407
R406
R404
R454
CNP501
CNP502
J402
IC822
J403
R469
R783
IC821
TP1
C400
C472
C482
C821
C822
C441
C442
C444
C443
C445
R802
C823
C824
C424C422C421
C434
C423
C425
C426
C403
C404
J401
RY702
Q471
D752 Q560
C471
C484
C435
C436
R411
R412
R413
R414
R415
R780
C446
R416
1k
680
1k
1k
1k
1k
2.2k
AK04V1
1050V
10 50V
2.2 50V
2.2 50V
2.2 50V
1k
1k
M61542FP
100
100
1k
1k
15P
10P
4P
TA79007S
1k
47k
1P
BOARD IN WIRE
0.1
0.1
0.1
0.1
0.1
TA7807S
JW
JW
JW
JW
JW
220
47
25V
47
25V
4.7
50V
4.7
50V
4.7
50V
2.2
50V
4.7
50V
4.7
50V
4.7
50V
0.001
0.001
4P
RELAY
2SD2144S-TP-UVW
1SS133T-72 2SC1740S-QRT
100
10V
0.1
2.2 50V
2.2 50V
JW
JW
JW
JW
JW
4.7k
4.7
50V
1k

2020
STR-K675P
STR-K675P
3-11. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) —
19
21
15
15
D503
Q508
R884 C882
D883
RY501
R553 R503
C557 C507
Q883
Q881
Q882
R883
C881
D882
R885
D881
D603
Q608
R625
R501
R551
R816
D703
Q708
R725
R532
R531
R525
C503C553
R504
C502
C552
R554
C501
C551
D791
Q509
RY502
R791
R500
IC850
R853R854
R857
C816 C815
C851
R793
R624
R524
R724
J700
R882
D852
R855
R479
TM600
CNP701
C554
R653 R603
C604
R601
R651
C603C653
C656
R604
C602
C652 R654
C601
C651
R600
C654
R702
R703
C707
C704
R701 C703
R704
C702
C701
R700
C516
Q505
R511
C513
R522
R513
C515
D502
Q506
R520
D501
R514
R523
Q503
Q504
R508
R509
R507
C508
Q501
R510
C511
C512
C514
C566
Q555
R571
C563
R572
C565
D552
Q556
R570
D551
R564
R573
Q553
Q552
Q554
R558
R559
R557
C558
Q551
R560
C561
C562
C564
C616
Q605
R611
C613
R622
R613
C615
D602
Q606 R620
D601
R614
R623
Q603
Q602
Q604
R609
R607
C608
Q601
R610
C611
C612
C614
C666
Q655
R671
C663
R672
R663 C665
D652
Q656 R670
D651
R664
R673
Q653
Q652
Q654
R658
R659
R657
C658
Q651
R660
C661
C662
C664
C716
Q705
R711
C713
R722
R713 C715
D702
Q706 R720
D701
R714
R723
Q703
Q702
Q704
R709
R707
C708
Q701
R710
C711
C712
C714
C500
C600
RY601
RY701
R712
R662
R612
R562
R512
R752
JW754
JW753
Q851
Q852
R851
R859
CN701
R856
D851
R515
Q507
R519
R517
R518
R516
R565
Q557
R569
R567
R568
R566
R615
Q607
R619
R617
R618
R616
R665
Q657 R669
R667
R668
R666
R715
Q707 R719
R717
R718
R716
CN503
IC501
IC601
IC701
R858
C556
R502
JW500
R552
JW600
C606
JW700
JW751
TM602
R506
R505
Q502
R555
R556
R608
R605
R606
L601
R561
L501
L551
L651
L701
R721
R661
R655 R656
R708
R705
R706
C504
C506
R602
R652
C657 C607
C700
JW752
C706
R815
R852
R621
R563
R521
1SS133T-72
2SC1740S-QRT
39k 10
50V
1SS133T-72
RELAY
2.7k 2.7k
100
10V 100 10V
2SC1841TP-PAFAEA
2SA1038S-RSE-TP
2SC1740S-QRT
6.8k
220
16V
1SS133T-72
1k
1SS133T-72
1SS133T-72
2SC1740S-QRT
2.2k
1k
1k
1
1SS133T-72
2SC1740S-QRT
2.2k
680 1W
680
1W
2.2k
220p220p
68k
100p
100p
68k
4.7
50V
4.7
50V
1SS133T-72
2SC1740S-QRT
RELAY
2.2k
22k
NJM4565D
10k33k
10k
10
100V 10 100V
0.1
82
82
82
82
10k
JW
220k
2.2k
BOARD TERMINAL
4P
33p
500V
2.7k 2.7k
33p
500V
1k
1k
220p220p
3p 500V
68k
100p
100p 68k
4.7
50V
4.7
50V
22k
33p
500V
68k
2.7k
100
10V
33p
500V
1k 220p
68k
100p
4.7
50V
22k
0.022
2SA1038S-RSE-TP
4.7k
220p
47k
1.5k
10
50V
1SS133T-72
2SA1038S-RSE-TP
68k
1SS133T-72
15k
4.7
MN2488
MP1620
100
100
560
47 25V
2SA1115-TP-EF
47p
500V
47p
500V
0.01
0.022
2SA1038S-RSE-TP
10
220p
47k
10
50V
1SS133T-72
2SA1038SRSE-TP
68k
1SS133T-72
15k
4.7
MN2488
2SC3623ATP-LK
MP1620
100
100
560
47 25V
2SA1115TP-EF 47p
500V
47p
500V
0.01
0.022
2SA1038S-RSE-TP
4.7k
220p
47k
1.5k
10
50V
1SS133T-72
2SA1038SRSE-TP 68k
1SS133T-72
15k
4.7
MN2488
2SC3623ATP-LK
MP1620
100
560
47 25V
2SA1115TP-EF
47p
500V
47p
500V
0.01
0.022
2SA1038S-RSE-TP
10
220p
47k
1.5k 10
50V
1SS133T-72
2SA1038S-RSE-TP 68k
1SS133T-72
15k
4.7
MN2488
2SC3623ATP-LK
MP1620
100
100
560
47 25V
2SA1115TP-EF 47p
500V
47p
500V
0.01
0.022
2SA1038S-RSE-TP
4.7k
220p
47k
1.5k 10
50V
1SS133T-72
2SA1038S-RSE-TP 68k
1SS133T-72
15k
J4.7
MN2488
2SC3623ATP-LK
MP1620
100
560
47 25V
2SA1115TP-EF 47p
500V
47p
500V
0.01
2.2 100V
2.2 100V
RELAY
RELAY
6.2k
6.2k
6.2k
6.2k
6.2k
56k
JW
JW
2SC1815GR-TPE2
DTA124ESA-TP
10k
4P
470k
ISS133T-72
22k
2SC1815GR-TPE2
22k
15k
22k
3.3k
22k
2SC1815GR-TPE2
22k
15k
22k
3.3k
22k
2SC1815GR-TPE2
22k
15k
22k
3.3k
22k
2SC1815GR-TPE2 22k
15k
22k
3.3k
22k
2SC1815GR-TPE2 22k
15k
22k
3.3k
10P
180
3p 500V
68k
JW
68k
JW
3p 500V
JW
JW
BOARD TERMINAL
82k
2.2k
2SC3623-ATP-LK
2.2k
82k
100
2.2k
82k
0
4.7k
0
0
0
0
10
4.7k
2.2k 82k
100
2.2k
82k
33p 500V
3p 500V
68k
68k
100 10V 100 10V
2.2
100V
JW
3p 500V
1
10k
10
1.5k
10
330
R881
47k
• See page 29 for IC Block Diagrams.